辽阳首山地下水人工回灌可行性研究

辽阳首山地区由于地下水长时期的过量开采,地下水位大幅下降,形成了地下水漏斗区,产生了一系列生态环境问题。通过对该地区地下水开发利用现状和供需矛盾分析,研究了实施地下水人工回灌的必要性和可行性;在对水文地质条件、回灌水源条件、水质等进行分析后,认为在首山地区实施地下水人工回灌是可行的,并提出了几点建议。     

辽阳首山地区地下水人工回灌的可行性研究

辽阳首山地区由于地下水长时期的过量开采,地下水位大幅下降,形成了地下水漏斗区,产生了一系列生态环境问题。通过对该地区地下水开发利用现状和供需矛盾分析,研究了实施地下水人工回灌的必要性和可行性;在对水文地质条件、回灌水源条件、水质等进行分析后,认为在首山地区实施地下水人工回灌是可行的,并从水环境角度提出了3点建议。     

安阳市区实施地下水人工回灌的可行性分析

对安阳市区水资源的供需现状和发展趋势进行分析,提出实施地下水人工回灌的必要性和可行性;在对地质构造、水文地质条件、水源条件、工程效益等进行分析后,认为在安阳市区实施地下水人工回灌是可行的,并提出了4条合理化建议。     

凌海市大小凌河扇地下水人工回灌试验研究

本文通过分析研究水文、水文地质及多年地下水动态观测等资料,系统地分析了地下水人工回灌的各种条件,对地下水人工回灌进行了试验研究.     

再生水地下调蓄利用与准则研究

在总结我国人工地下水回灌类型及地质条件的基础上,对再生水地下调蓄利用的必要性和可行性进行了分析,结合即将颁布的再生水地下水回灌水质标准,提出实施再生水地下调蓄工程配套的再生水处理工艺和应遵循的准则。     

北海市涠洲岛水资源配置和节约保护对策

随着涠洲岛经济社会发展和旅游开发规划的实施,水资源瓶颈制约日益显现。分析了涠洲岛水资源承载力情况及存在的问题,并针对这些问题提出相应对策,为实现涠洲岛水资源支撑和保障涠洲岛发展战略布局提供决策参考。     

敦煌月牙泉地区人工回灌下的地下水动态模拟

在研究敦煌盆地水文地质条件的基础上,应用FEFLOW软件建立月牙泉地区浅层地下水三维不稳定流数值模型,重点分析人工回灌场(A场、C场)对月牙泉地区地下水系统的影响,探讨影响月牙泉湖水位动态的主要因素,预测最佳人工回灌方式。结果表明:区内水位的抬升和波动主要由渠系渗漏和C场注水引起;人工回灌并未宏观改变模拟区原有地下水渗流场补径排条件,只是局部促进或阻碍地下水径流;A场以回灌量2500m³/d为最优方案。     

涠洲岛水资源综合开发和生态治理

从北海涠洲岛水资源分布及开发利用现状入手,分析了造成岛上水资源紧缺的主要原因。论述了在当前形势下如何统筹做好水资源管理、实施水生态修复,解决水资源紧缺现状。并为涠洲岛实现生态发展提出了建议。     

辽宁省地下水保护主要工程措施

通过对地下水替代水源、人工回灌、海侵区帷幕灌浆稳压回灌以及地下水监测网站建设等工程措施介绍和分析,突出了工程措施在辽宁省地下水保护工作中的重要作用。     

北海市2010年地下水监测质量评价

通过对北海市2010年地下水监测资料分析,采用《地下水质量标准》的方法及标准进行水质综合评价,结果：石头埠、禾塘、龙潭、福成、侨港水厂、西场地下水水质较差,合浦县城、党江地下水水质良好,涠洲岛水厂、公馆、常乐地下水水质优良。分析水质差的原因,提出了北海市地下水保护的措施。     

Effect of Land-Use Change and Artificial Recharge on the Groundwater in an Arid Inland River Basin

The spatial-temporal variability of groundwater in an inland basin is very sensitive to human activity. This study focused on groundwater changes in the Alagan area within the Tarim Basin, China, with the aim of analyzing the effects of land-use change and artificial recharge on the response characteristics of groundwater. The distributed hydrological model MIKE SHE was introduced for modeling the influence of land use and artificial recharge on groundwater. Based on the runoff variation of this area, we selected three periods to simulate and analyze the response of groundwater. The results of land-use change indicated that there were significant changes from 1980 to 2000. The changed region accounted for 11.93 % of the total area, and the low coverage grasslands showed the greatest reduction. The simulation of hydrological processes before artificial recharge showed that the groundwater depths differed greatly with land-use types. Response analysis of groundwater to artificial recharge showed that the regions in which groundwater decreased were mainly distributed in grassland and bare land. Moreover, spatial autocorrelation coefficients indicated positive spatial autocorrelation of groundwater depths, but these began to reverse in 2010. Overall, land use and artificial recharge have a great influence on the time and spatial distribution of groundwater. Artificial recharge has played a positive role in improving groundwater conditions, but did not change the decreasing trend in time and space. The adaptation of environment to the decrease of groundwater presents as degradation. Groundwater conditions could be improved to some extent by the artificial recharge, but its change seems to be an irreversible process. Overall, this response study provides insight into estimations for exploration of water resources in arid areas.     

Statistical Approach for Comprehensive Planning of Watershed Development Through Artificial Recharge

The purpose of the study is to demonstrate that cross-correlation analyses can contribute to the artificial recharge study in regional level of shallow aquifer. Correlations between hydrologic time series data were analyzed to identify the hydrogeologic location for potential artificial recharge in district Surat, Gujrat, India. The natural groundwater-level fluctuations and rainfall data were used for the analyses. The effective development of groundwater resources is essential for a country like India. India receives a good amount of average annual rainfall (114?cm) but most of its part goes waste as runoff. Over exploitation of groundwater due to increasing population is an additional cause of water crisis that results in the reduction in per capita availability of water in the country. Artificial recharge is essential for effective development of groundwater resources. An effort has been made to evaluate the suitable recharge zone considering rainfall by arresting runoff to restore groundwater conditions using a statistical technique. Groundwater system in a basaltic terrain where the top weathered regolith forms shallow aquifer the water table variation is directly influenced with temporal rainfall variation. Understanding of this relation is of critical importance to management of groundwater resources. A diagnostic relationship between recharge time series and water level time series is used to serve the purpose to determine the best site for groundwater recharge.     

邢台百泉岩溶地下水系统特征分析与开发利用研究

根据邢台百泉岩溶盆地中赋存的岩溶地下水补给快、循环周期短、水质好,同时流域内污染源容易污染岩溶地下水的特点,计算了岩溶水补给资源量,并对邢台市供水水质进行评价,结果表明,NO3 N检出率较高,可能与长期使用氮肥有关。阐明在开发利用岩溶地下水时应遵循其自然特性进行合理开采,还应通过人工调节、人工补给提高水资源的利用率。     

A Suitable Tool for Sustainable Groundwater Management

Artificial recharge is used to increase the availability of groundwater storage and reduce saltwater intrusion in coastal aquifers, where pumping and droughts have severely impaired groundwater quality. The implementation of optimal recharge methods requires knowledge of physical, chemical, and biological phenomena involving water and wastewater filtration in the subsoil, together with engineering aspects related to plant design and maintenance operations. This study uses a novel Decision Support System (DSS), which includes soil aquifer treatment (SAT) evaluation, to design an artificial recharge plant. The DSS helps users make strategic decisions on selecting the most appropriate recharge methods and water treatment technologies at specific sites. This will enable the recovery of safe water using managed aquifer recharge (MAR) practices, and result in reduced recharge costs. The DSS was built using an artificial intelligence technique and knowledge-based technology, related to both quantitative and qualitative aspects of water supply for artificial recharge. The DSS software was implemented using rules based on the cumulative experience of wastewater treatment plant engineers and groundwater modeling. Appropriate model flow simulations were performed in porous and fractured coastal aquifers to evaluate the suitability of this technique for enhancing the integrated water resources management approach. Results obtained from the AQUASTRESS integrated project and DRINKADRIA IPA CBC suggest the most effective strategies for wastewater treatments prior to recharge at specific sites.     

石川河河谷区地下水人工补给潜力与补给方式

为实现石川河地下水位的有效回升进而维持采补平衡,需在该区实施地下水人工补给工程,并确定合理的补给位置及有效的补给方式。选取地下水埋深、坡度、含水层厚度、含水层渗透系数、与环境敏感区距离和给水度6个指标,运用空间分析技术对人工补给地下水地点适宜性进行评价;在此基础上建立三维地质模型分析典型人工补给潜力区的地层结构,探索可行的地下水人工补给方式。结果表明：适宜进行人工补给的高潜力和较高潜力区域主要分布在研究区中部及东南部,面积达48.01 km²,占研究区总面积的32.0%。建议：在石川河河道中上游高潜力和较高潜力区域的北部修建地表入渗池或渗坑;在河道中上游高潜力和较高潜力区域南部和河道中下游的较高潜力区域布设反滤回灌井群;可沿石川河河道中上游高潜力与较高潜力区域之间布置一条长约4.5 km的渗渠,利用河道进行入渗补给。研究结果可为地下水库的修建提供参考。     

保定市一亩泉地下水回灌水文地质条件分析

通过对区域水文地质条件、现场回灌试验等资料的综合分析,对保定市一亩泉水源地下水超采降落漏斗分布范围、地下储水空间、回灌水向深层含水层及外流域流失的可能性,及入渗场地下水回灌地质条件等进行了系统分析,在此基础上选择了适于本区水文地质条件的地下水回灌方法。     

An Integrating Approach for Conjunctive-Use Planning of Surface and Subsurface Water System

This study proposes an integrated approach to assess the performance of a conjunctive-use surface and subsurface water system. System dynamics serves as the main framework of the proposed conjunctive-use model, simulating the interaction between surface and subsurface water and the impact of various conjunctive-use alternatives on the system as a whole. This study assumes natural groundwater recharge as a water source to the system, and estimates its volume using geographic information system (GIS) tools, a groundwater simulation model (MODFLOW), and a parameter identification model (UCODE). This study assesses various conjunctive-use alternatives and analyzes the frequency of water shortage to illustrate how the recharge rate affects water supply reliability under the conjunctive-use framework. Simulation results indicate that conjunctive-use with artificial recharge indeed reduces the frequency of extreme water shortages. Results also reveal that artificial recharge is necessary to maintain groundwater conservation without overusing river flow. Although this study focuses on southern Taiwan, the proposed concepts and procedure are applicable to other areas with a similar conjunctive-use framework.     

济南市有效利用城市雨水回灌岩溶地下水探讨

利用雨水补给地下水已成为城市水资源管理的有效措施.文中以济南市为例探讨了雨水回灌岩溶地下水的途径.济南市具有较好的岩溶水赋存条件,通过人工回灌工程,采用点面结合的回灌方式,利用雨水补给地下水,将城区岩溶水直接补给区的水循环尽可能地恢复到一定的自然状态,最终达到供水保泉的目的.     

沈阳市地下水库建设的技术可行性分析

地下水在我国尤其是北方地区城乡供水中占较大比例。地下水库因具有地表水与地下水资源联合调控、多年调蓄、水资源战略储备及应急供水等功能而受到越来越广泛的关注。在分析地下水库基本结构的基础上,提出了建设地下水库的基本条件,并以沈阳市为例进行分析,给出了论证地下水库补给水源、补给区、地下水库储水空间估算及开采条件的具体分析与计算方法。最后利用建立的地下水流数值模型,模拟预测了地下水库建成后分别按常规水源与应急水源两种方式所产生的供水规模。结果表明,在研究区建设地下水库具有较高可行性。